Steering apparatus for HEV and method of controlling the same

摘要

A steering apparatus for a HEV which assists in providing power steering regardless whether an engine is being operated, and a method of controlling the same. More specifically, one or more detectors detect a vehicle speed, a steering angle, and an engine RPM, and a pump is controlled according to the engine RPM based upon signals received from the one or more detectors. Additionally, an electric motor unit (EMU) mounted to a steering column unit separately from the power steering pump, provides power assisting in steering the vehicle. Also a hybrid control unit (HCU) receives a signal from one or more of the detectors to control a power steering pump and an electric motor unit as required.

主权项

1. A steering apparatus of a hybrid electric vehicle, comprising:
detectors configured to detect a vehicle speed, a steering angle, and an engine revolutions per minute (RPM); a power steering pump controlled according to the engine RPM, that provides power for steering of a steering wheel; an electric motor unit (EMU) mounted to a steering column unit separately from the power steering pump, the EMU providing power for steering of the steering wheel; and a hybrid control unit (HCU) configured to receive signals from the detectors to control both the power steering pump and the electric motor unit based on the signals received, wherein steering power is supplied regardless of whether or not the engine is being operated.